bingham



(No Model.) 2 SheetS-Sheet 1.

L. K. BINGHAM. APPARATUS PUR MAKING lRINTBRS ROLLBRS.

1.\I0.419,913. Patented Jan. 21, 1890.

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2 Sheets--Sheet- 2.

(No Model.)

,y L. 1L BINGHAM, A Y APPARATUS POR MAKING PRINTERS ROLLBRS. No.419,913.

Patented Jan. 2'1, 1890.

N PETERS. Phowumngnmhcr. wnshingmn. D. C,

UNITED STATES ArENT OFFICE.

LEANDER K. INGHAM, OF NEV YORK, N. Y.

APPARATUS FOR MAKING PRINTERS ROLLERS.

SPECIFICATION forming part of Letters Patent No. 419,913, dated January21, 1890.

Application filed February 15, 1889. Serial No. 299,950. (No model.)

To all whom it may concern.-

le it known that I, LEANDER K. BINGHAM, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Apparatus forMaklng Printers Rollers; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

Figure 1 is a vertical diametri@ section of the apparatus containing oneform of the invention. Fig. 2 is an enlarged detail of the clamp. Fig. 3is a top view of a modified form of bottom or base-plate. Fig. i is adiametri@ section of said plate and part of the cylinder.

This invention relates to improvements in apparatus for making printersrollers, and has for its object the production of an apparatus which canbe speedily and easily operated, as will be hereinafter pointed out; andthe invention consists in the details of construction hereinafter setforth.

In the annexed drawings, the letter A indicates a cylinder or casehaving within it the diaphragms B, provided with large holes Z2 andperforations b', these diaphragms being thus foraminous. The holes o areof the same size and aligned with the holes o and CZ in the heads C andD, the mold-tubes E belng placed in said holes c, b, and CZ. At the topthe projections e of the mold-tubes have a steam and water tight jointmade by the packing f and shouldered ring F. The holes cl in t-he head Dare threaded, and to correspond therewith the lower ends e of themoldtubes have the exterior threads e2. The cylinder A has the trunnionsa a, whereby it is to be supported in suitable bearings, so as to beoseillated, and it has the inlet a and overiiow a2 for steam and water.

The bottom head D is dropped, as at d', and has the circumferentialflange cl2, by which it is secured to the corresponding iiange a3 of thecylinder A. The base-plate or supplemental bottom G is made cup-shaped,so as to it the bottom of the head D. This bottom G has also acircumferential iiange g, by which it is secured to the cylinder eitherby clamps, as shown, or otherwise. In the top of this bottom G is made anumber of recesses g', depending in number upon the number of mold-tubesE. From each recess a channel g2 runs out tothe edge of the bottom,having an opening g3. nected with one of the others by a channel. Ifthere are several circles of recesses, these within are connected tothose without by channels, thus radiating to the edge of the bottom.Surrounding this supplemental bottom G, and secured thereto by theannulus h, which is fastened to the bottom G, is a traveling ring orslide H, provided with a nozzle 7L', having the threaded end h2. Thelocation of this ring is such that the bore h3 of the nozzle is in theplane of the channels 6,2, as shown in Fig. 1. To give the requisitedepth to the bottom G, it may be made hollo'wed underneath, having theprojections g4, in which are the holes g5 for the ends of therollerstocks.

In Figs. 3 and 4. is shown a modification. Here the base-plate D is fiaton the bottom and the supplemental bottom G is flat on top. The channelsk dip at their outer ends, having the closed tops it. This is done toallow them to communicate with the bore of the nozzle K. The ring 7a2,having the nozzle, is held in place by an annular flange Z on the bottomG.

Handles M M may be made to the traveling rings to facilitate turningthem.

In Fig. 1 are shown jacks N N, which pass through the iianges a3 and cl2and rest against the iiange g of the supplemental bottom. Vhen thebottom is to be removed, these jacks are turned downward, and, bearingagainst the flange g, forces the bottom 0E, thus overcoming the tendencyof the composition or atmospheric pressure to hold the supplementalbottom on.

To the protruding ends p of the rollerstocks P are secured by screws sorotherwise the clamps S. Vhen the supplemental bottom G is removed, beingthus connected to the rollers, the weight of this bottom assists indrawing the rollers from the molds.

In an apparatus thus constructed the rollermolds are held securely inthe lower head The central recess is con-V with a steam and water tightjoint, and with a similar joint at the top and with full allowance forexpansion and contraction, the upper ends of the mold-tubes not beingsecured, but being loose in the smooth holes of the upper head.

When the apparatus is to be used, the rollerstocks are put into themolds, their lower ends protruding through the supplemental bottom, andthe clamps s are secured to such ends. The nozzle is secured to asuitable supply-pipe and the traveling ring is turned until the bore ofthe nozzle registers with the opening of one of the channels. mittedthrough'the inlet a', thoroughly heating up the entire apparatus, whenthe steam is cut off and that within th-e apparatus let out through theoverflow a2. Composition is then admitted into the channel and rises upinto the mold tube or tubes connected there- With. As soon as they arefilled the ring is turned, closing the channel and preventing thecomposition from running out. The nozzle is turned to another channel,composition isadmitted, mold-tubes fitted, the ring turned, and so onfor all the channels and molds. Any mold may be left uniilled by notturning the nozzle to the channel for that mold. After the molds arefilled water is admitted through the inlet a and allowed to iiow outthrough the overiiow a2, thus keeping up a current of water through theapparatus, which quickly cools the composition and sets it. After theroller is made the clamps are released, the jacks operated, and thelsupplemental bottom removed, drawing with it the finished rollers.

I am aware of United States Patent No. 41,545, where is shown a boiler,the tubes of which are held by screw-threads at one end and are loose atthe other. In the present device there are combined with the moldtubesthe foraminous diaphragms, which prevent the mold-tubes from buckling.The

mold-tubes being thus held rigidly in a .f

y the said bottom and having a nozzle, as set fforth.

straight position, they have the due longitudinal movement at theirloose ends without any liability of binding thereat.

In the present case I have illustrated the broad invention of anapparatus having the ring with a nozzle as applied to a group of i`roller-stocks, and the supplemental bottom, f the ends of the stocksprotruding below the mold-tubes. This broad invention is also applicableto single molds, and I have made an application of even date herewith,Serial No. 290,915, wherein the broad invention is displayed, but only aspecific form claimed.

In another application of even date herewith, Serial No. 299,949,I haveshown and described an apparatus having mold-tubes held fast at one endand loose at the other. In such device the fast ends of the mold-tubesare threaded into threaded glands, which are Steam is adends of themold-tubes being simply screwed into the head itself.

IIaving described my invention, what I claim is- 1. In a moldingapparatus, the combination of a group 'of mold-tubes opening at theirlower ends into passages which extend to the side of the apparatus, andthe ring or slide, whereby the composition-pipe may be connected withsaid passages one at a time, the remaining passage or passages beingclosed by the slide, as and for the purpose described.

2. A molding apparatus provided at its bottom with an inletcommunicating with the lower end of the mold and having a ring or slideprovided with a nozzle, whereby the composition may bc admitted into theinlet or the latter may be closed, as desired.

3. The combination of the cylinder containing rows of mold-tubes, andthe bottom provided with the grooves corresponding in number andposition to the rows of mold-tubes in the cylinder and with theperforated slide, to which is attached the pipe that conveys thecomposition from the reservoir, as set forth.

4. In an apparatus for making printers rollers, the bottom provided witha series of grooves and openings connected with said grooves, incombination with the slide, to which is attached the composition-pipe,as set forth.

5. An apparatus for making printers" rollers, consisting of a cylindercontaining a number of mold-tubes and provided at the bottom with achannel for each tube,` and a ring surrounding the apparatus at thesechannels and having a nozzle, as set forth.

6. The combination of the cylinder provided with the heads having theholes, the mold-tubes resting in said holes, the supple- I mental bottomhaving the recesses at the bottoms of the mold-tubes, and the channels ileading from these recesses to the edge of the bottom, with a travelingring secured around 7. The combination of the cylinder andthe:supplemental bottom with the jacks, as set forth.

8. The combination of the mold-tubes, the

bottom, with the clamps secured to such protruding end, as set forth.

9. An apparatus for making printers rolll ers, such as described, havingat its bottom av channel leading to each mold-tube, and a ring rprovided with a nozzle, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

LEANDER K. BINGHAM.

lVitnesses:

Trios. HOUGHTON, M. DARIAN.

IOC)

IIO

